Home / 3,889.36-5,833.68-1,424.08

Finding the Fourth Proportional to 3,889.36, 5,833.68 and 1,424.08

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Solution

The fourth proportional to 3,889.36, 5,833.68 and 1,424.08 is: 2,135.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,889.36 : 5,833.68 = 1,424.08 : x
  2. Step 2: Convert to fraction form
    3,889.36/5,833.68 = 1,424.08/x
  3. Step 3: Cross multiply
    3,889.36x = 5,833.68 × 1,424.08
  4. Step 4: Simplify right side
    3,889.36x = 8,307,627.01
  5. Step 5: Solve for x
    x = 8,307,627.01/3,889.36
  6. Step 6: Final answer
    x = 2,135.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.